To use Square Roots, click the "Introduction" button and
drag the sliders to create rows and columns of square units.

Click the "Square Roots" button and drag the sliders to show
the squaring of the base.

For an extension activity, click the "Sq Root Practice" button
to calculate square roots. Click the "Continue" button and
then click the "New Problem" button and enter the answer in
the text box. An interactive power calculator will help your child answer
the questions. Click the "Check/Explain" button to check the
answer.